LOS ANGELES — With a clientele of Hollywood celebrities including Nicki Minaj, Jennifer Aniston, Jennifer Jason Leigh, Christina Ricci and Alicia Silverstone, Dawn DaLuise was well-known as the skin-care guru of the stars.

The former model ran the West Hollywood salon Skin Refinery that used electrical muscle stimulation instead of the typical steam-and-cream facial. Vogue and InStyle magazines have featured her, and she’s the go-to beauty expert for national publications.

So last year, when aesthetician Gabriel Suarez moved in a couple of doors down and started offering facials and male body waxing, the competition created tension.

At that point, authorities say, DaLuise reached out to a former NFL player she knew and talked about having Suarez killed. Mathers emphasized the man took no steps to carry out the hit and is not under investigation.

The scheme began to unravel after DaLuise reported the harassment to the Sheriff’s Department this month, listing Feinstein as a potential witness. Detectives discovered texts between the two in which DaLuise allegedly discussed the plan to have Suarez killed.

The Sheriff’s Department immediately arrested her “because of the impending danger,” Mathers said.

She appeared in court March 7, but her arraignment was postponed.

Around that same time, Mathers said, Feinstein disappeared. Members of the department’s fraud and cybercrimes unit continued to investigate and uncovered another twist: The cyberbullying messages and posts traced back to Feinstein.

Feinstein, whose rap sheet includes felony credit-card fraud, grand theft and identity theft, was arrested Wednesday on suspicion of stalking and later released on $150,000 bail.

Mathers said Feinstein and DaLuise “had some beef,” but that any motive remains unclear. Suarez had nothing to do with the threats, Mathers added. Sheriff’s officials said another man is also under investigation in the cyberstalking.

The case makes for a strange wrinkle in the career of a woman who has long pampered the who’s who of Hollywood.

A 2002 piece in The New York Times quoted a peeved DaLuise, who attributed the sparse turnout at her daughter’s birthday party to “the trickle-down effect of Hollywood rudeness.”

In 2007, she told Star magazine she visited the set of “Friends” often because her client, actress Jennifer Aniston, was obsessed with getting frequent bikini waxes.

And in 2011, her name swirled around celebrity blogs after she dished to the media a scene involving Nicki Minaj after DaLuise waxed her eyebrows and lip.

According to her shop’s website, DaLuise moved to California to model for Frederick’s of Hollywood in the 1980s, but eventually enrolled in beauty school and got into the skin-care business.

“Dawn realized that women in Los Angeles take the business of staying beautiful, young and thin very seriously,” the site says.